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A compact Zigbee presence sensor built on 60 GHz mmWave radar, so it keeps detecting people who are sitting still or barely moving, which PIR motion sensors miss. It adds an RGB status light, ambient lux sensing and TVOC air-quality monitoring, and it runs continuously from USB-C power. It also repeats the Zigbee mesh. It suits Home Assistant and SmartThings users who want room-level occupancy for lighting and climate automations, but it needs a Zigbee hub and a nearby outlet.
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Lowest price we've seen: $89.75 on Nov 14 at Amazon; highest $109.95 on Oct 31. Tracked across 2 stores since Oct 31.
This presence sensor uses 60 GHz mmWave radar to detect people in a room, even when they are sitting or lying still. It is a compact unit that senses presence continuously, which suits bedrooms and other quiet spaces.
An RGB status light shows room occupancy and automations. The indicator flashes red when air quality is dangerous. Besides presence, the sensor measures ambient light (lux) and TVOC for use in automations.
It connects over Zigbee 3.0 and works with Home Assistant (ZHA and Z2M) and SmartThings. It also acts as a Zigbee repeater to strengthen the mesh network. Power comes through USB-C.